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所在平台: Udemy |
课程主页: https://www.udemy.com/course/introduction-to-python-functions-for-beginners/
课程评论：没有评论
## Python 函数入门课程总结 本课程“Python 函数入门”旨在为初学者介绍 Python 编程语言中的核心概念——函数。 **核心要点：** * **函数定义：** 函数是一段可执行的代码块，仅在被调用时运行。 * **参数与返回值：** 函数可以接收数据（称为参数）作为输入，并可以返回数据作为结果。 * **函数的重要性：** * **代码组织与可读性：** 将代码分解成独立的块，使程序结构更清晰，更易于理解。 * **代码复用：** 避免重复编写相同的代码，提高开发效率。 * **接口定义：** 方便代码共享和协作。 * **模块化与可维护性：** 提高应用程序的模块化程度，便于维护和修改。 * **封装复杂逻辑：** 将复杂的任务封装在函数中，简化主程序。 * **函数的种类：** * **内置函数：** Python 提供的预定义函数，如 `help()`, `min()`, `print()`。 * **用户自定义函数 (UDFs)：** 由用户为了特定目的而创建的函数。 * **匿名函数（Lambda 函数）：** 不使用 `def` 关键字定义的函数，也称为 Lambda 函数。
Functions are an essential part of the Python programming language.A function is a block of code which only runs when it is called.You can pass data, known as parameters, into a function and a function can return data as a result.Functions are a convenient way to divide your code into useful blocks, allowing us to order our code, make it more readable, reuse it and save some time.Also functions are a key way to define interfaces so programmers can share their code.Functions provide better modularity for your application and a high degree of code reusing.You can use functions in programming to bundle a set of instructions that you want to use repeatedly or that, because of their complexity, are better self-contained in a sub-program and called when needed. That means that a function is a piece of code written to carry out a specified task.To carry out that specific task, the function might or might not need multiple inputs.When the task is carried out, the function can or can not return one or more values.There are three types of functions in Python:Built-in functions, such as help() to ask for help, min() to get the minimum value, print() to print an object to the terminal.User-Defined Functions (UDFs), which are functions that users create to help them outAnonymous functions, which are also called lambda functions because they are not declared with the standard def keyword.
